<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="js/vue.js"></script>




</head>

<body>
  <div id="app">
    <input v-model="myName"><br>
    你输入了： {{myName}}

  </div>
  <script>
    //1. 创建Vue核心对象
    new Vue({
      el: "#app",
      data() {
        return {
          //自定义的
          myName: ""
        }
      }
    });

  </script>


</body>

</html>